Home  >  Article  >  Backend Development  >  一组PHP加密解密函数分享_php实例

一组PHP加密解密函数分享_php实例

WBOY
WBOYOriginal
2016-06-07 17:19:33810browse

复制代码 代码如下:

/**
*功能:对字符串进行加密处理
*参数一:需要加密的内容
*参数二:密钥
*/
function passport_encrypt($str,$key){ //加密函数
srand((double)microtime() * 1000000);
$encrypt_key=md5(rand(0, 32000));
$ctr=0;
$tmp='';
for($i=0;$i$ctr=$ctr==strlen($encrypt_key)?0:$ctr;
$tmp.=$encrypt_key[$ctr].($str[$i] ^ $encrypt_key[$ctr++]);
}
return base64_encode(passport_key($tmp,$key));
}

/**
*功能:对字符串进行解密处理
*参数一:需要解密的密文
*参数二:密钥
*/
function passport_decrypt($str,$key){ //解密函数
$str=passport_key(base64_decode($str),$key);
$tmp='';
for($i=0;$i$md5=$str[$i];
$tmp.=$str[++$i] ^ $md5;
}
return $tmp;
}

/**
*辅助函数
*/
function passport_key($str,$encrypt_key){
$encrypt_key=md5($encrypt_key);
$ctr=0;
$tmp='';
for($i=0;$i$ctr=$ctr==strlen($encrypt_key)?0:$ctr;
$tmp.=$str[$i] ^ $encrypt_key[$ctr++];
}
return $tmp;
}
$str='作者:WWW.JB51.NET;
$key='phpnet';
$encrypt=passport_encrypt($str,$key);
$decrypt=passport_decrypt($encrypt,$key);

echo '原文:',$str."


";
echo '密文:',$encrypt."

";
echo '译文:',$decrypt."

";
?>
Statement:
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn